Ekelund, R. B. (1990). A history of economic theory and method. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoEkelund, Robert B. A History of Economic Theory and Method. New York: McGraw-Hill, 1990.
MLA引文Ekelund, Robert B. A History of Economic Theory and Method. New York: McGraw-Hill, 1990.
警告:這些引文格式不一定是100%准確.